Sugden Audio IA-4 Masterclass

Planet Audio
Planet Audio
Planet Audio
Planet Audio
Planet Audio

IA-4 is Sugden flagship and most popular integrated amplifier.  Weighing a substantial 20 kilos the IA-4 has a purposeful look and impressive build quality. Plenty of input and output facilities are on offer including a high quality phono stage. The class A power output circuit has been upgraded from the A21 series with a larger power supply and improved soothing and output capacitors. Gold plated circuit boards, full relay switching and a precision input selector switch offer further detailing. The pre-amplifier section of the IA-4 is a bespoke design, with surprising clarity and detail.  The most noticeable feature is the ability to create a large performance with depth and height on any type of music

Inputs ​                                  Three line level, tape, MM phono, balanced

Outputs                                 Variable pre-out, fixed out, loudspeaker out

Volume Control                    Remote control RC5 compatible

Tape                                       Monitor and record off


Line Input sensitivity            125mV

Phono Input Sensitivity        2mV (MM)

Power Output                       33 Watts per channel in pure A class

Frequency Response           +/-1dB 14Hz-200kHz

Bandwidth                            6Hz-300kHz

Signal to Noise                     >84dB

Gross Weight  (packed)        20kgs

Dimensions                         165 x 430 x 440 mm